Wear a face mask (consider using an N95 respirator) if you must come into close contact with a sick person. "Close contact" means within 6 feet.

Wear an N95 respirator if helping a sick person with a nebulizer, inhaler, or other respiratory treatment.

If you've got the flu, wear a face mask before going near other people.

 
If you've got the flu and must leave home -- to see the doctor, for example -- wear a face mask.

If you are well, but live in a household with someone who has the flu, wear a face mask before going near other people. Why? You may be infected with the flu bug but don't yet have symptoms.

If swine flu is widespread in your community, you may consider wearing a face mask when in crowded settings.

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